Leanne Franson January 5, 2013 03:35 AM " However, in normal operation, the company says that the system won’t let two people through at a time." As a parent, or school teacher, do you know how crazy this is for a school? You would have to let small children out the door alone, with no way to grab them, see where they are going through the door etc. It is a nightmare. Good perhaps for 10 yr olds, but even then... with a whole class of kids, and one teacher, the teacher cannot stand at the door and see the kids inside and out. One of my nightmares as a mother is people who would let my child in or out of a door and block me, the parent... It may block the chance in a million of an armed gunman, but also block school professionals or parents from stopping a child from running out of the school and getting hit by a car for instance. Multiply by 18 for a class of kindergarten students.... Bob Ehresman January 5, 2013 10:41 AM It seems ridiculously complicated and wasteful of space compared to a row of turnstiles. I also imagine these would prove to be a maintenance nightmare after a year or two of operation as well. Steven Wilson January 5, 2013 10:49 AM This is a great idea. It will cost a lot of money (both fixed and running costs), continually punish those who never had any intention of committing a crime, waste countless man years in delays and almost certainly enrich the friend and/or associate of the congressman who approves the project. Just think of all the jobs it'll create! PrometheusGoneWild.com January 5, 2013 01:11 PM I love the idea, but there are to many moving parts. They need to simplify it. With the way they are showing it the moving panels would have to be anchored to the floor or ceiling. The ceiling would be the better way to go since this would leave the walking area clear of track. They need to make the doors thin enough that they can drop the whole "extending out to close the gap" when they other door is passing. Just one more thing to go wrong. Make them thin enough so a person cannot get by and then just add replaceable, flexible rubber spacers. As for the issue of schools, I could see using this for the visitors entrance. Obviously you cannot run a hundred kids in through the front door with this system. MasterG January 5, 2013 01:43 PM more security is not the answer. This cattle control is not freedom. What is freedom? Tom Arr January 5, 2013 04:30 PM And a little more liberty is innovated away.... Michael Mantion January 5, 2013 09:42 PM Overly complex injury machine. no insurance company in the world will touch this. I can see SOOOO many points of failure and dangerous intersects..The cost and maintenance of this would be absurd not to mention the floor space needed would be extremely prohibited. A simple revolving tube like the use for dark rooms would work so much better and cost so much less. . Gadgeteer January 5, 2013 10:57 PM I don't see what this could do that a couple of much simpler, cheaper, more reliable armored revolving doors couldn't. Fahrenheit 451 January 6, 2013 03:48 PM Although conceptual this is a very savvy idea. Using lightweight yet strong materials I can see this coming to fruition. An escalator can run 24/7 and I see this concept along the same lines. If anything it is a deterrent that combined with facial recognition and other technologies should work quite well. William Blackburn January 6, 2013 10:14 PM In relation to schools, this is pure idiocy. In relation to a small number of military or other high-security facilities, I'm sure there's a need out there somewhere.